Details
- Number of pages: 6
- Part Number: No. 139
- Revision Date: 29-Nov-1947
- Description: Ref 605 - Supplementary Test for Double-Acting Governor Auxiliary Check Valves, Ref 606 Copper Reinforced Gaskets for Double-Acting Governors, Ref 607 Correction of Ref 553 Service Bulletin 121, Ref 608 Removal of Centrifugal Switch